Regent Seven Seas has unveiled its new Skyview Regent Suite - flagged as the largest all-inclusive, ultra-luxury cruise suite in history. Imagined for Seven Seas Prestige, the line's first new ship class in 10 years arriving next year, the suite weighs in at 9,000 square feet and will cost from £20,000 per night. It accommodates up to six guests, has its own gym and features more 3,500 square feet of wrap around balcony.